@sunnySkys - I doubt there is anything to be done about the side effects. From what I understand the activity in the body that causes the bronchialspasms to stop also causes the side effects.
I use salbutamol too. One side effect that I wasn't aware of is potassium deficiency. Which is kind of funny, considering I actually had it a few months ago!
I started getting muscle cramps in my legs all the time, so my doctor did a few tests. I had a potassium deficiency, so he gave me some potassium and sent me on my way. I feel sure I experienced this because of my use of salbutamol. I wonder why my doctor didn't mention it though!